Installer manual NIBE F370. Exhaust air heat pump IHB GB LEK

Transcription

1 Installer manual Exhaust air heat pump LEK IHB GB

2 A detailed explanation of the button functions can be found on page 33. How to scroll through menus and make different settings is described on page 35. The mode for setting the indoor temperature is reached, when in the start mode in the main menu, by pressing the OK button twice. Read more about the settings on page 37. To temporarily increase the amount of hot water, first turn the control knob to mark menu 2 (water droplet) and then press the OK button twice. Read more about the settings on page 43. In event of disturbances in comfort If a disturbance in comfort of any type occurs there are some measures that can be taken before you need to contact your installer. See page 57 for instructions.

3 Table of Contents 1 Important information 2 Safety information 2 2 Delivery and handling 8 Transport 8 Assembly 8 Supplied components 9 Removing the covers 9 Removing parts of the insulation 9 3 The heat pump design 10 4 Pipe and ventilation connections 12 General pipe connections 12 Dimensions and pipe connections 14 Cold and hot water 15 Heating medium side 15 Installation alternative 15 General ventilation connection 16 Ventilation flow 16 Adjusting ventilation 16 5 Electrical connections 17 General 17 Connections 19 Settings 21 Optional connections 22 Connecting accessories 23 6 Commissioning and adjusting 24 Preparations 24 Filling and venting 24 Start-up and inspection 25 7 Control - Introduction 33 Display unit 33 Menu system 34 8 Control - Menus 37 Menu 1 - INDOOR CLIMATE 37 Menu 2 - HOT WATER 43 Menu 3 - INFO 45 Menu 4 - HEAT PUMP 46 Menu 5 - SERVICE 49 9 Service 53 Service actions Disturbances in comfort 57 Info-menu 57 Manage alarm 57 Troubleshooting Accessories Technical data 60 Dimensions and setting-out coordinates 60 Technical specifications 61 Electrical circuit diagram 62 Item register 68 Table of Contents 1

4 1 Important information Safety information This manual describes installation and service procedures for implementation by specialists. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. Rights to make any design or technical modifications are reserved. NIBE Symbols NOTE This symbol indicates danger to machine or person. Caution This symbol indicates important information about what you should observe when maintaining your installation. TIP This symbol indicates tips on how to facilitate using the product. Marking F370 is CE marked and fulfils IP21. The CE marking means that NIBE ensures that the product meets all regulations that are placed on it based on relevant EU directives. The CE mark is obligatory for most products sold in the EU, regardless where they are made. IP21 means that the product can be touched by hand, that objects with a diameter larger than or equivalent to 12.5 mm cannot penetrate and cause damage and that the product is protected against vertically falling drops. Handling The heat pump contains highly flammable refrigerant. Special care should be exercised during handling, installation, service, cleaning and scrapping to avoid damage to the refrigerant system and in doing so reduce the risk of leakage. NOTE Work on the refrigerant system must be done by authorised personnel in accordance with the relevant legislation on refrigerants, supplemented by additional requirements for flammable gas, for example, product knowledge as well as service instruction on gas systems with flammable gases. Safety precautions Wiring Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans. When working in the refrigerant circuit Pipe installation should be kept to a minimum. Connections in the refrigerant circuit must be carried out as follows: Soldered, welded or mechanical connections must be made before the valves are opened to allow the refrigerant to flow between the cooling system parts. The system must be equipped with a vacuum valve to relieve connecting pipes and/or any unfilled parts of the cooling system. Reusable mechanical connectors and collared joints are not permitted indoors. Refrigerant pipes must be protected or recessed to prevent damage. Must be accessible for future maintenance. National gas regulations must be observed. Maximum amount of refrigerant: See Technical specifications. Everyone who works with or opens a refrigerant circuit must have a current, valid certificate from an accredited industry issuing body, which states that, according to the industry's recognised assessment standard, they have the authority to safely handle refrigerants. Servicing must only be performed according to the equipment manufacturer's recommendations. Maintenance and repairs that require the assistance of another trained person must be carried out under the supervision of person with the authority to handle combustible refrigerants. Maintenance and repair that requires the skill of another person must be carried out under the supervision of someone with the above expertise. 2 Chapter 1 Important information

5 Before work is started on systems that contains combustible refrigerants, safety checks must be performed to ensure that the ignition risk is kept to a minimum. The work must be carried out in a controlled way to minimise the risk of contact with combustible gas or liquid during the work. All maintenance staff and those who work in close proximity to the product must be instructed which type of work is to be carried out. Avoid carrying out work in enclosed spaces. The area surrounding the worksite must be cordoned off. Ensure that the area is made safe by removing combustible material. Check whether there is refrigerant in the area using a suitable refrigerant detector prior to and during work, to notify the service technician whether there is a possible flammable atmosphere or not. Ensure that the refrigerant detector is suitable for combustible refrigerant, i.e. does not generate sparks or cause ignition in any other way. If hot work is carried out on the heat pump, a powder or carbon dioxide fire extinguisher must be to hand. Those who carry out work with refrigerant system connections, including exposing pipes that contain or have contained combustible refrigerant, may not use potential ignition sources in such a way that that can lead to risks of fire or explosions. All potential ignition sources, including cigarette smoking, should be kept at a safe distance from the service work area where combustible refrigerant can leak out. Before carrying out work, the area surrounding the equipment must be checked to ensure that there are no ignition risks. "No smoking" signs must be displayed. Ensure that the work is carried out outdoors or that the work area is ventilated before the system is opened and before any hot work is carried out. The area must be ventilated whilst the work is being carried out. There must be ventilation around any refrigerant that comes out, which should be routed outdoors. If electrical components are replaced, the replacement parts must be fit for purpose and have the correct technical specifications. Always follow the manufacturer's guidelines regarding maintenance and servicing. Contact the manufacturer's technical department in the event of any doubts. The following checks must be carried out for installations that use combustible refrigerants. The filling quantity is appropriate for the size of the space where the parts that contain refrigerant are installed. Ventilation equipment and outlet work correctly and without obstructions. If an indirect refrigerant circuit is used, check whether the secondary circuit contains refrigerant. All markings of equipment are visible and clear. Markings, signs and similar that are not clear must be replaced. Refrigerant pipes and components are positioned in such a way that it is not likely that they be subjected to substances that can corrode components containing refrigerant, if these components are not made of material that is resistant against corrosion, or not appropriately protected against such corrosion. Repair and maintenance of electrical components must include initial safety checks and procedures for component inspection. In the event of a fault, which can cause a safety risk, do not supply any power to the circuit until the fault has been rectified. If the fault cannot be rectified immediately, and operation must continue, an adequate temporary solution must be implemented. This must be reported to the equipment owner, so that all parties have been informed. The following checks must be carried out at the initial safety checks. That the capacitors are discharged. Discharging must be done safely, to prevent the risk of sparking. That no powered electrical components or live cables are exposed when filling or collecting refrigerant or when the system is flushed. That the system is continually grounded. Removal and draining When a cooling circuit is opened for repairs or for another reason work must be carried out in a conventional manner. Due to the risk of fire it is important that best practice is applied. Follow the procedure below. 1. Drain the refrigerant. 2. Flush the circuit with inert gas. 3. Drain the circuit. 4. Flush again with inert gas. 5. Open the circuit by cutting or burning. Collect the refrigerant in the intended container. Flush the system with oxygen-free nitrogen to make the device safe. This process may need to be repeated several times. Compressed air and oxygen may not be used. Flush the system by breaking the vacuum with oxygenfree nitrogen, and filling the system to working pressure, relieving the pressure to atmospheric pressure and finally pumping to vacuum. Repeat the process until no refrigerant remains in the system. After the final filling of oxygenfree nitrogen, relieve the pressure in the system to atmospheric pressure, so that work can be carried out. This type of flushing must be carried out if hot work is to be performed on the pipe system. Chapter 1 Important information 3

6 4 Ensure that the vacuum pump's outlet is not near to ignition sources and that there is satisfactory ventilation by the outlet. Filling In addition to the conventional filling procedures, the following actions must be taken. Ensure that different refrigerants are not mixed when filling equipment is used. Hoses and lines must be as short as possible to minimise the enclosed refrigerant volume. Containers must be stored upright. Ensure that the cooling system is grounded before the system is filled with refrigerant. Mark the system once filling is complete (if not already marked). Take extra care not to overfill the cooling system. Before refilling the system, pressure test it with oxygenfree nitrogen. Leak test the system after filling but before using the system. Perform an additional leak test before leaving the installation. Leak testing The following leak detection methods are deemed acceptable for systems containing flammable refrigerants. Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area.) Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed and the appropriate percentage of gas (25 % maximum) is confirmed. Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. If a leak is suspected, all naked flames shall be removed/extinguished. If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut off valves) in a part of the system remote from the leak. Oxygen free nitrogen (OFN) shall then be purged through the system both before and during the brazing process. Decommissioning Before performing this procedure, the technician must be familiar with the equipment and all its component parts. Good practice prescribes that all refrigerant is collected safely. Before the work is carried out, samples of Chapter 1 Important information oil and refrigerant must be taken, if analyses are required before collected refrigerant can be reused. There must be a power supply when this task is started. 1. Familiarise yourself with the equipment and its use. 2. Isolate the system electrically. 3. Before starting the procedure, ensure that: necessary equipment for mechanical handling of the refrigerant container is available all necessary personal safety equipment is available and used correctly the collection process is continuously supervised by an authorised person the collection equipment and containers meet appropriate standards. 4. Pump the refrigerant system to vacuum, if possible. 5. If it is not possible to pump to vacuum, manufacture a branch, so that the refrigerant can be retrieved from different parts of the system. 6. Check that the refrigerant container is on the scales before starting to collect. 7. Start the collection device and collect according to the manufacturer's instructions. 8. Do not overfill the containers (max 80 % (volume) liquid content). 9. Do not exceed the containers' maximum permitted working pressure not even temporarily. 10. When the containers have been filled correctly and the process is complete, close all shut-off valves in the equipment and remove and containers and equipment from the installation immediately. 11. The collected refrigerant must not be filled in any other system before being cleaned and checked. Marking The equipment must be marked stating that it has been taken out of operation and drained of refrigerant. The marking must be dated and signed. Check that the equipment is marked indicating that it contains combustible refrigerant. Collection Best practice prescribes that all refrigerant is collected safely when the refrigerant is drained from a system, either for servicing or for decommissioning. The refrigerant must only be collected in suitable refrigerant containers. Ensure that the required number of containers, that can hold the entire volume of the system, are available. All containers that are to be used must be intended for the collection of the refrigerant and marked for this refrigerant (especially designed for the collection of refrigerant). The containers must have the correctly functioning relief valves and shut-off valves. Empty collec-

7 tion containers must be drained and, if possible, chilled before collection. The collection equipment must function correctly and instructions for the equipment must be to hand. The equipment must be suitable for the collection of combustible refrigerant. Fully functioning and calibrated scales must also be to hand. Hoses must be in good condition and be equipped with leak proof quick-couplings. Before using the collecting machine, check that it works correctly and has been well maintained, and that corresponding electrical components are sealed, to prevent ignition if any refrigerant should come out. Contact the manufacturer in the event of any doubts. Return the collected refrigerant to the refrigerant supplier in the correct collection container and with the relevant Waste Transfer Note. Do not mix refrigerants in collection devices or containers. If compressors/compressor oil are/is to be removed ensure that the affected device is drained to an acceptable level to ensure that no combustible refrigerant remains in the lubricant. Compressors must be drained before being returned to the supplier. Only electrical heating of the compressor housing may be used to quicken draining. Drain oil from the system in a safe manner. Serial number The serial number can be found at the bottom right of the front cover and in the info menu (menu 3.1). Caution Always give the product's serial number when reporting a fault. Country specific information Installer manual This installer manual must be left with the customer. Great Britain This installation is subject to building regulation approval, notify the local Authority of intention to install. Use only manufacturer s recommended replacement parts. Benchmark places responsibilities on both manufacturers and installers. the purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with the manufacturers instructions by competent persons and that it meets the requirements of the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should be provided to the customer for future reference. Installers are required to carry out the installation, commissioning and servicing work in accordance with the Benchmark Code of practice which is available from the Heating and Hotwater Industry Council who manage and promote the Scheme. Visit for information. Warranty information Thank you for installing a new NIBE heat pump in your home. NIBE heat pumps are manufactured in Sweden to the very highest standard so we are pleased to offer our customers a comprehensive guarantee. Chapter 1 Important information 5

8 The product is guaranteed for 24 months for parts and labour from the date of installation or 33 months from the date of manufacture, whichever is the shorter. The NIBE guarantee is based on the unit being installed and commissioned by a NIBE accredited installer, serviced every year and the Benchmark documents completed. Where this condition is not met, any chargeable spare parts or components issued within the applicable guarantee period still benefit from a 12 month warranty from the date of issue by the manufacturer. We recommend the installer completes and returns as soon as possible, your guarantee registration card or completes the guarantee form on the NIBE website Electrical Supply The heat pump must be permanently connected to a 230V ac 50Hz supply. All system components shall be of an approved type and all wiring to current I.E.E wiring regulations. External wiring must be correctly earthed, polarised and in accordance with the relevant standards: Currently this is BS that the installation of any ventilation system should be planned and this plan be strictly followed by the ventilation engineer. We recommend that the exhaust air is extracted via metal spiral seam pipes with fitting seals approved to sealing class D, or suitable equivalent UPVC plastic duct work and sealed with acrylic duct sealant, from the bathroom, toilet, kitchen and utility room. At the same time, fresh air should enter the building via NIBE wall vents into the living room, bedrooms and other living area. Factors such as street noise, exhaust fumes, wind, general noise, cold and pollen can be taken into account choosing the right outside air vent. This ensures a controlled ventilation system with heat recovery and offers a high degree of comfort. The discharge air duct work to outside must be insulated to ensure condensation does not form in the duct work. 6 Domestic Hot Water All domestic hot water circuits, connections and fittings must be in accordance with the relevant standards and water supply regulations. It should also be in accordance with the relevant requirements of the Local Authority and the Building Regulations relevant to the location of installation. BS 6700 Services supplying water for domestic use within buildings and their cartilages. Water Supply (Water Fitting) Regulations 1999 or The Water Bylaws 2000 (Scotland). Heating System The installation of the heat pump should follow best practice as covered in the following: BS 5449 Forced circulation hot water central heating systems for domestic premises. BS Heating systems in buildings Design of heat pump heating systems. Ventilation System Any ventilation system should be designed and installed in accordance with Building Regulations, England & Wales Approved Document F1 and Scotland Technical Standard Section 3.14 Ventilation. Only this will ensure hygienic room air and prevent any dampness to the building structure. To be able to ensure a high degree of efficiency and an extremely comfortable living environment, we recommend Chapter 1 Important information

9 ... Inspection of the installation Current regulations require the heating installation to be inspected before it is commissioned. The inspection must be carried out by a suitably qualified person. Fill in the page for information about installation data in the User manual. Description Ventilation (page 16) Setting the ventilation flow Connecting ground cables Heating medium (page 15) System flushed System vented Circulation pump setting Setting heating medium flow Boiler pressure Expansion vessel T&P valve Tundish Electricity (page 17) Fuses heat pump Fuses property Outside sensor Room sensor Safety breaker Earth circuit-breaker Miscellaneous Warranty Benchmark checklist Notes Signature Date Chapter 1 Important information 7

10 0 R 0 R 2 Delivery and handling Transport F370 should be transported and stored vertically in a dry place. The F370 may, however, be carefully laid on its back when being moved into a building. The centre of gravity is in the upper part. Installation area Leave a space of 500 mm in front of the heat pump. Approx 50 mm free space is required in order to open the side hatches. The hatches do not need to be opened during service, all service on F370 can be carried out from the front * (80) (50) Assembly Position the heat pump on a firm base that can bear its weight, preferably on a concrete floor or foundation. Use the heat pump s adjustable feet to obtain a horizontal and stable set-up mm 500 *Depending on routing of supply cables and pipes. NOTE Ensure that there is sufficient space (300 mm) above the heat pump for installing ventilation hoses. The area where the heat pump is located must be equipped with floor drainage. Install with its back to an outside wall, ideally in a room where noise does not matter, in order to eliminate noise problems. If this is not possible, avoid placing it against a wall behind a bedroom or other room where noise may be a problem. Wherever the unit is located, walls to sound sensitive rooms should be fitted with sound insulation. Route pipes so they are not fixed to an internal wall that backs on to a bedroom or living room. 8 Chapter 2 Delivery and handling

11 LEK LEK Supplied components Side covers Outside sensor Room sensor LEK LEK LEK Expansion vessel with holder (supplied separately) Earth cable 1 x tundish Location The kit of supplied items is placed on top of the product. Removing the covers Front cover The side covers can be removed to facilitate the installation. 1. Remove the screws from the upper and lower edges. 2. Twist the cover slightly outward. 3. Move the cover backwards and slightly to the side. 4. Pull the cover to one side. 5. Pull the cover forwards. Removing parts of the insulation Parts of the insulation can be removed to facilitate the installation. 1 3 Insulation, top 1. Grip the handle and pull straight out as illustrated. 4 2 LEK LEK 1. Remove the air treatment hatch by pulling it straight out. 2. Remove the screws from the lower edge of the front cover. 3. Lift the cover out at the bottom edge and up. 4. Pull the hatch towards yourself. LEK Chapter 2 Delivery and handling 9

12 3 The heat pump design LEK LEK LEK 10 Chapter 3 The heat pump design

13 Pipe connections XL 1 Connection, heating medium flow line XL 2 Connection, heating medium return line XL 3 Connection, cold water XL 4 Connection, hot water XL 8 Connection, docking in XL 31 Ventilation connection, exhaust air XL 32 Ventilation connection, extract air HVAC components CM 1 Expansion vessel FL 1 Expansion relief valve, safety valve, hot water heater FL 2 Safety valve, climate system FL 5 T&P valve FL 6 Vacuum valve GP 1 Circulation pump QM 10 Filler valve, hot water heater QM 11 Filler valve, climate system QM12 Filler valve, climate system QM 20 Venting, climate system QM 31 Shut-off valve, heating medium flow QM 32 Shut off valve, heating medium return QN 11 Shunt valve QN 17 Pressure reduction valve WM 1 Tundish WM 2 Overflow water discharge WP 1 Overflow pipe, safety valve hot water heater WP 2 Overflow pipe, safety valve climate system WP 3 Condensation lead off, fan box Sensors etc. BP 1 High pressure pressostat BP 2 Low pressure pressostat BP 5 Pressure gauge, heating system BT 1 Outdoor temperature sensor* BT 2 Temperature sensors, heating medium flow BT 3 Temperature sensors, heating medium return BT 6 Temperature sensor, hot water, control BT 7 Temperature sensor, hot water, display BT 16 Temperature sensor, evaporator BT 18 Temperature sensor, compressor operation BT 19 Temperature sensor, immersion heater operation BT 20 Temperature sensor, exhaust air BT 21 Temperature sensor, extract air BT 30 Thermostat, backup heating BT 50 Room temperature sensor* AA 4 CA 1 EB 1 EB 10 FA 1 FD 1 MA 1 SF 1 Display unit AA4-XJ3 USB socket AA4-XJ4 Service socket Capacitor Immersion heater Compressor heater Miniature circuit-breaker Temperature limiter Shunt motor with hand wheel Switch Cooling components EP 1 Evaporator GQ 10 Compressor HZ 2 Drying filter* QN 1 Expansion valve* Ventilation GQ 2 Exhaust air fan HQ 10 Exhaust air filter* UR 1 Filter cover, exhaust air Miscellaneous PF 1 Rating plate PF 3 Serial number plate UB1 Cable gland UB2 Cable gland * Not visible in the image Designations in component locations according to standard IEC and Electrical components AA 1 Immersion heater card AA 2 Base card AA 3 Input circuit board Chapter 3 The heat pump design 11

14 4 Pipe and ventilation connections General pipe connections Pipe installation must be carried out in accordance with current norms and directives. The system requires a low-temperature design of the radiator circuit. At lowest dimensioned outdoor temperature (DUT) the highest recommended temperatures are 55 C on the flow line and 45 C on the return line. NOTE The pipe system needs to be flushed out before the heat pump is connected so that any debris cannot damage component parts. NOTE This installation is subject to building regulation approval, notify the local Authority of intention to install. damage. Likewise should the discharge pipes (tundishes), drain valves and motorised valves be positioned clearly away from any electrical components. This is the only thing the non-pressurised overflow pipe may be used for. Even overflow pipes from tundish connected to the expansion relief valve must be connected to the drain in the same way. Please note that the connection of the T&P-valve should not be used for any other purpose. Valves may not be positioned between the expansion valve and the vessel. Discharge pipes from tundishes shall have av vertical section of pipe at least 300 mm long, before any elbows or bends in the pipework (see following picture). Safety device (e.g. temperature relief valve). Metal discharge pipe from temperature relief valve to tundish. 500 mm maximum Tundish NOTE Use only manufacturer s recommended replacement parts. 300 mm minimum Metal discharge pipe from tundish, with continous fall. Discharge below fixed grating. Waste water from the collection tray at the evaporator and from the safety valve is led by a non-pressurised overflow pipe to the drain so that hot water cannot cause Possible wall Fixed grating Trapped gulley Valve outlet size Minimum size of discharge pipe Minimum size of discharge pipe from tundish Maximum resistance allowed, expressed as a lenght of straight pipe (i.e. no elbows or bends) Resistance created by each elbow or bend G1/2 15 mm 22 mm up to 9 m 0.8 mm G1/2 15 mm 28 mm up to 18 m 1.0 mm G1/2 15 mm 35 mm up to 27 m 1.4 mm <G3>/4 22 mm 28 mm up to 9 m 1.0 mm <G3>/4 22 mm 35 mm up to 18 m 1.4 mm <G3>/4 22 mm 42 mm up to 27 m 1.7 mm G1 28 mm 35 mm up to 9 m 1.4 mm G1 28 mm 42 mm up to 18 m 1.7 mm G1 28 mm 54 mm up to 27 m 2.3 mm 12 Hard water areas Usually, there should not be a problem in installing F370 in areas of hard water as the operating temperature is C. Chapter 4 Pipe and ventilation connections Cleaning the climate system When the water heater and the climate system have been filled with water, F370 must operate at maximum normal temperature for at least one hour. Thereafter the system

15 must be drained of water and refilled. See section Service actions on page 54. Before installing the heat pump in an existing system, it is important that the system is properly flushed through. Even if the heat pump is to be installed in a new system, the heat pump and system should be flushed. NOTE Ensure that cleaning agent has been removed from the entire system before adding inhibitor. After flushing an inhibitor should be used for long-term anti-corrosion protection. For information regarding recommended water cleaning products for heating and cooling systems, visit our webpage Maximum boiler and radiator volumes The volume of the pressure expansion vessel (CM1) is 10 litres and it is pressurised as standard to 0.5 bar ((5 mvp). As a result, the maximum permitted height "H" between the vessel and the highest radiator is 5 metres; see figure. If the standard initial pressure in the pressure vessel is not high enough it can be increased by adding air via the valve in the expansion vessel. The initial pressure of the expansion vessel must be stated in the inspection document. Any change in the initial pressure affects the ability of the expansion vessel to handle the expansion of the water. The maximum system volume excluding the boiler is 219 litres at the above pre-pressure. H System diagram F370 consists of a heat pump, water heater, immersion heater, circulation pump and control system. F370 is connected to ventilation system and heating medium circuits. When the exhaust air at room temperature passes through the evaporator, the refrigerant evaporates because of its low boiling point. In this way the energy in the room air is transferred to the refrigerant. The refrigerant is then compressed in a compressor, causing the temperature to rise considerably. The warm refrigerant is led to the condenser. Here the refrigerant gives off its energy to the boiler water, whereupon the refrigerant changes state from gas to liquid. The refrigerant then goes via filters to the expansion valve, where the pressure and temperature are reduced. The refrigerant has now completed its circulation and returns to the evaporator. XL 1 XL 2 XL 3 XL 4 XL 8 Connection, heating medium flow Connection, heating medium return Connection, cold water Connection, hot water Connection, docking Chapter 4 Pipe and ventilation connections 13

16 Symbol key Symbol Meaning Venting valve Dimensions and pipe connections Shut-off valve Non-return valve Shunt / shuttle valve Safety valve Trim valve Tundish Temperature sensor Expansion vessel P Pressure gauge B Circulation pump Particle filter Fan Compressor A C Heat exchanger LEK Setting out dimensions Connection A B C XL1 Heating medium supply (mm) XL2 Heating medium return (mm) XL3 Cold water (mm) XL4 Hot water (mm) XL8 Docking (mm) WM1 Drip tray (mm) Pipe dimensions Connection Heating medium ext Ø (mm) 22 Cold water ext Ø (mm) 22 Hot water ext Ø (mm) 22 Docking ext Ø (mm) 22 Overflow water discharge (mm) Chapter 4 Pipe and ventilation connections

17 Cold and hot water Connecting cold and hot water The mixing valve must be installed if the factory setting is changed so that the temperature can exceed 60 C. If the factory setting is changed, national regulations must be observed. The setting is made in menu (page 50). The flexible hose to the expansion vessel can be installed in the plugged connection on the safety valve. Installation alternative F370 can be connected in several different ways, some of which are shown below. Further option information is available at and in the respective assembly instruction for the accessory used. See page 59 move the list of the accessories that can be used to F370. Extra hot water heaters The heat pump should be supplemented with an electric water heater, if a hot tub or other significant consumer of hot water is installed. Two or more climate systems When more than one climate system is to be heated, the following connection can be used. The ECS 40/ECS 41. accessory is required for this connection. Heating medium side Connecting the climate system When connecting to a system with thermostats on all radiators/underfloor heating coils, a relief valve must be fitted, or a thermostat must be removed to ensure sufficient flow. Chapter 4 Pipe and ventilation connections 15

18 General ventilation connection Ventilation installation must be carried out in accordance with current norms and directives. To prevent fan noise being transferred to the exhaust air devices, it may be a good idea to install a silencer in the duct. This is especially important if there are exhaust air devices in bedrooms. Connections must be made via flexible hoses, which must be installed so that they are easy to replace. The extract air duct must be provided with diffusion-tight insulation over its entire length. Provision must be made for inspection and cleaning of the duct. Make sure that there are no reductions of cross-sectional area in the form of creases, tight bends etc, since this will reduce the ventilation capacity. The air duct system must be a minimum of air tightness class B. The exhaust air duct must be a maximum of 20 m long and contain a maximum of six bends. Because the heat pump contains a flammable refrigerant in the form of propane (R290), the air ducting system must be grounded. This is done by making a sound electrical connection to the exhaust air and vented air ducts with the two ground cables supplied. The cables must then be connected to the ground studs on top of the top cover. Exhaust air duct Exhaust air duct (kitchen fan) must not be connected to F370. Ventilation flow Connect F370 so that all exhaust air except exhaust air duct air (kitchen fan) passes the evaporator (EP1) in the heat pump. The lowest ventilation flow should be according to current national standards. For optimum heat pump performance the ventilation flow should not be less than 31 l/s (110 m³/h). The heat pump s installation area should be ventilated with at least 5 l/s (18 m³/h). The installation area must have a volume of at least 8 m³. Ensure that the ventilation openings are not blocked. Set the ventilation capacity in the heat pump's menu system (menu 5.1.5). Adjusting ventilation To obtain the necessary air exchange in every room of the house, the exhaust air devices must be correctly positioned and adjusted and the fan in the heat pump adjusted. The factory setting for the ventilation on the heat pump is 50% and you should therefore adjust the ventilation immediately after installation so that it is set according to the projected value for the house. A defective ventilation installation may lead to reduced installation efficiency and thus poorer operating economy, and may result in moisture damage to the house. NOTE A duct in a masonry chimney stack must not be used for extract air LEK 16 Chapter 4 Pipe and ventilation connections

19 LEK LEK 5 Electrical connections General All electrical equipment, except the outdoor temperature sensors and room temperature sensors are ready connected at the factory. Disconnect the heat pump before insulation testing the house wiring. If the building is equipped with an earth-fault breaker, F370 should be equipped with a separate one. If a miniature circuit breaker is used it should have at least motor characteristic C. See page 61 for fuse size. For the heat pump wiring diagram, see page 62. Communication and sensor cables to external connections must not be laid close to high current cables. The minimum area of communication and sensor cables to external connections must be 0.5 mm² up to 50 m, for example EKKX or LiYY or equivalent. When cable routing in F370, cable grommets (e.g. UB1 and UB2, marked in image) must be used. In UB1 and UB2 the cables are inserted through the heat pump from the back to the front. Miniature circuit-breaker Operation (230 V), fan, compressor, circulation pump etc are internally fused by a miniature circuit-breaker (FA1). Temperature limiter The temperature limiter (FD1) cuts the current supply to the electrical addition if the temperature rises between 90 and 100 C and can be manually reset. Resetting The temperature limiter (FD1) is accessible behind the front cover. Reset the temperature limiter by pressing the button (FD1-SF2) using a small screwdriver. Caution Check the temperature limiter and miniature circuit-breaker. They may have tripped during transportation. NOTE The switch (SF1) must not be moved to "" or " " until the boiler has been filled with water. Otherwise the temperature limiter, thermostat and the immersion heater can be damaged. NOTE Electrical installation and service must be carried out under the supervision of a qualified electrician. Cut the current with the circuit breaker before carrying out any servicing. Electrical installation and wiring must be carried out in accordance with the stipulations in force. Temperature limiter, compressor The temperature limiter (FD2) cuts the current supply to the soft starter if the temperature rises above 88 C and is manually reset. Resetting The temperature limiter (FD2) is accessible behind the front cover. Reset the temperature limiter by pressing the button (FD2-SF2) using a small screwdriver. Chapter 5 Electrical connections 17

20 LEK LEK LEK Accessibility, electrical connection The plastic cap of the electrical boxes is opened using a screwdriver. NOTE The cover for the input card is opened without a tool. 2. Angle out the cover and remove it. Removing the cover, base board Caution To remove the cover for the base board, the cover for the input circuit board must first be removed. Removing the cover, input circuit board 1 A B Push the catch down. 2. Angle out the cover and remove it. Removing the cover, immersion heater circuit board A 1. Insert the screwdriver (A) and pry the catch carefully downwards (B). 2. Angle out the cover and remove it. Cable lock Use a suitable tool to release/lock cables in the heat pump terminal blocks. 1 B LEK Insert the screwdriver (A) and pry the catch carefully downwards (B). Chapter 5 Electrical connections

21 LEK LEK Connections Externt F1245 NOTE To prevent interference, unscreened communication and/or sensor to external connections cables must not be laid closer than 20 cm to high voltage cable when cable routing Power connection F370 must be installed via an isolator switch with a minimum breaking gap of 3mm. Minimum cable area must be dimensioned according to the fuse rating used. Supplied cable (length approx 2 m) for incoming electricity is connected to terminal block X1 on the immersion heater card (AA1). The connection cable can be found on the reverse of F370 (see dimensions diagram below) Connection 1x230V N PE 0 L1 1 PE1 Outside sensor Install the outside temperature sensor (BT1) in the shade on a wall facing north or north-west, so it is unaffected by the morning sun. Connect the sensor to terminal block X6:1 and X6:2 on the input card (AA3). Use a 2 core cable of at least 0.5 mm² cable area. If a conduit is used it must be sealed to prevent condensation in the sensor capsule. Chapter 5 Electrical connections 19

22 LEK Room sensor F370 is delivered with a room sensor supplied (BT50). The room temperature sensor has up to three functions: 1. Show current room temperature in the heat pump's display. 2. Option of changing the room temperature in C. 3. Makes it possible to change/stabilise the room temperature. Install the sensor in a neutral position where the set temperature is required. A suitable location is on a free inner wall in a hall approx. 1.5 m above the floor. It is important that the sensor is not obstructed from measuring the correct room temperature by being located, for example, in a recess, between shelves, behind a curtain, above or close to a heat source, in a draft from an external door or in direct sunlight. Closed radiator thermostats can also cause problems. The heat pump operates without the sensor, but if one wishes to read off the accommodation's indoor temperature in F370 s display the sensor must be installed. Connect the room sensor to X6:3 and X6:4 on the input circuit board (AA3). If the sensor is to be used to change the room temperature in C and/or to change/stabilise the room temperature, the sensor must be activated in menu If the room sensor is used in a room with under floor heating it should only have an indicatory function, not control of the room temperature. RG 05 F Caution Changes of temperature in accommodation take time. For example, short time periods in combination with underfloor heating will not give a noticeable difference in room temperature. 20 Chapter 5 Electrical connections

23 LEK Settings Emergency mode When the heat pump is set to emergency mode (SF1 is set to ) only the most necessary functions are activated. The compressor is off and heating is managed by the immersion heater. NOTE Switch (SF1) must not be moved to "" or" " until F370 has been filled with water. Otherwise the temperature limiter, thermostat and the immersion heater can be damaged. Electrical addition - maximum output The immersion heater can be set up to a maximum of 8 kw. The delivery setting is 5.3 kw. The immersion heater output is divided into four steps, according to the table. Setting maximum output in the electrical addition is done in menu Power steps of the immersion heater Electrical addition (kw) Fusing (A) Max (A) Power in emergency mode The immersion heater s output in emergency mode is set with the dipswitch (S2) on the immersion heater circuit board (AA1) according to the table below. Factory setting is 5.3 kw. kw on on on 2 off off off 3 off on on 4 off off off 5 off off on 6 off off off The table displays the maximum phase current for the relevant electrical step for the heat pump. Output locking ON The image shows the dip-switch (AA1-S2) in the factory setting, that is 5.3 kw. Chapter 5 Electrical connections 21

24 LEK 22 Optional connections External connection options F370 has software controlled inputs and outputs on the input card (AA3), for connecting the extern switch function or sensor. This means that when an external switch function or sensor is connected to one of six special connections, the correct function must be selected to the correct connection in the software in F370. Caution If an external switch function or sensor is connected to F370, the function to use input or output must be selected in menu 5.4, see page 51. Selectable inputs on the input card for these functions are AUX1 (X6:9-10), AUX2 (X6:11-12), AUX3 (X6:13-14), AUX4 (X6:15-16) and AUX5 (X6:17-18). Selectable outputs are AA3:X7. B A The example above uses the inputs AUX1 (X6:9-10) andaux2 (X6:11-12) on the input circuit board (AA3). Caution Some of the following functions can also be activated and scheduled via menu settings. Chapter 5 Electrical connections Possible selection for AUX inputs Switch for external blocking of addition and/or compressor In those cases external blocking of addition and/or compressor is wanted, this can be connected to terminal block X6 on the input card (AA3), which is positioned behind the front cover. The additional heat and/or the compressor are disconnected by connecting a potential free switch function to the input selected in menu 5.4, see page 51. External blocking of addition and compressor can be combined. A closed contact results in the electrical output being disconnected. Switch for external blocking of heating In those cases external blocking of heat is used, this can be connected to terminal block X6 on the input card (AA3), which is positioned behind the front cover. Heating operation is disconnected by connecting a potential free switch function to the input selected in menu 5.4, see page 51. A closed switch results in blocked heating operation. Contact for activation of temporary lux" An external contact function can be connected to F370 for activation of the hot water function temporary lux". The switch must be potential free and connected to the selected input (menu 5.4, see page 51) on terminal block X6 on the input circuit board (AA3). "temporary lux" is activated for the time that the contact is connected. Contact for activation of external adjustment" An external contact function can be connected to F370 to change the supply temperature and the room temperature. When the switch is closed the temperature changes in C (if the room sensor is connected and activated). If a room sensor is not connected or not activated, the desired offset of "temperature" (heating curve offset) is set with the number of steps selected. The value is adjustable between -10 and +10. climate system 1 The switch must be potential free and connected to the selected input (menu 5.4, see page 51) on terminal block X6 on the input circuit board (AA3). The value for the change is set in menu 1.9.2, "external adjustment". climate system 2 to 4 External adjustment for climate systems 2 to 4 require accessories (ECS 40).

25 LEK LEK See the accessory s installer handbook for installation instructions. Contact for activation of fan speed An external contact function can be connected to F370 for activation of one of the four fan speeds. The switch must be potential free and connected to the selected input (menu 5.4, see page 51) on terminal block X6 on the input circuit board (AA3). When the switch closes, the selected fan speed is activated. Normal speed is resumed when the contact is opened again. F1X45 Externt L N PE L N PE Possible selection for AUX output (potential free variable relay) It is possible to have an external connection through the relay function via a potential free variable relay (max 2 A) on the input circuit board (AA3), terminal block X7. Optional functions for external connection: Indication of buzzer alarm. Control of circulation pump for hot water circulation. External circulation pump, for example external pump and shunt group. Connecting accessories Instructions for connecting accessories are provided in the manual accompanying the accessory. See page 59 for the list of the accessories that can be used with F370. If any of the above is installed to terminal block X7 it must be selected in menu 5.4, see page 51. The common alarm is preselected at the factory. NOTE An accessory card is required if several functions are connected to terminal block X7 at the same time that the buzzer alarm is activated (see page 59). The picture shows the relay in the alarm position. When switch (SF1) is in the " "or position the relay is in the alarm position. External circulation pump or hot water circulation pump connected to the buzzer alarm relay as illustrated below. NOTE Mark up any junction boxes with warnings for external voltage. Chapter 5 Electrical connections 23

26 LEK 6 Commissioning and adjusting Preparations 1. Check that the switch ((SF1)) is in position " ". 2. Check that the filling valve (QM11) is fully closed and that the temperature limiter (FD1) has not deployed. Caution Check the temperature limiter (FD1) and miniature circuit-breaker (FA1). They may have tripped during transportation. Filling and venting Filling the hot water heater 1. Open a hot water tap in the house. 2. Open the filling valve. This valve should then be fully open during operations. 3. When water comes out of the hot water tap, the hot water heater is full and the tap can be closed. Venting the climate system 1. Turn off the power supply to the heat pump. 2. Vent the heat pump via the vent valve (QM20) and the rest of the climate system via the relevant vent valves. 3. Keep topping up and venting until all air has been removed and the pressure is correct. NOTE The vent pipe from the container must be drained of water before air can be released. This means that the system is not necessarily bled despite the flow of water when the bleed valve (QM20) is opened. Filling the climate system 1. Open the vent valve (QM20). LEK 2. Connect enclosed flexible hose between connection (QM11) and connection (QM12). Open filling valves. The boiler section and the rest of the climate system are filled with water. 3. When the water that exits the vent valve (QM20) is not mixed with air, close the vent valve. After a while the pressure rises on the pressure gauge (BP5). When the pressure reaches 2.5 bar (0.25 MPa) the safety valve (FL2) starts to release water. Close the filler valve (QM11). 4. Open the safety valve (FL2) until the boiler pressure drops to the normal working range (approx. 1 bar) and check that there is no air in the system by turning the vent valve (QM20). 5. Check that there is water in the overflow cup (WM1). If the overflow cup requires topping up: 1. Turn the safety valve (FL1) anticlockwise carefully. 24 Chapter 6 Commissioning and adjusting

27 Start-up and inspection Start guide 1 Selection of language NOTE There must be water in the climate system before the switch is set to " ". 1. Turn the heat pump's switch (SF1) to "". 2. Follow the instructions in the start guide in the heat pump display. If the start guide does not start when you start the heat pump, start it manually in menu 5.7. Commissioning The first time the heat pump is started a start guide is started. The start guide instructions state what needs to carried out at the first start together with a run through of the heat pump s basic settings. The start guide ensures that the start-up is carried out correctly and cannot be bypassed. The start guide can be started later in menu 5.7. Operation in the start guide Choose the language that you want the information to be displayed in here. Change language as follows: 1. Turn the control knob until the language you require is marked. 2. Press the OK button. 3. Turn the control knob until the arrow in the top left corner (at the page number) has been marked. 4. Press the OK button to access the next step in the start guide. 2 Information 1. Turn the control knob until one of the arrows in the top left corner (at the page number) has been marked. 2. Press the OK button to skip between the steps in the start guide. See page 33 for a more in-depth introduction to the heat pump s control system. The start guide will be described under the following points step-by-step. Information about the start guide for the heat pump is shown here. Chapter 6 Commissioning and adjusting 25

28 6 Setting "internal electrical addition" 8 Room sensor settings set max electrical add. Setting range: 0-8 kw Default values: 5.3 kw factor system Setting range: Default value: 2.0 fuse size Setting range: A Default values: 16 A Here you set the max. electrical output of the internal electrical addition in F370 and the fuse size for the installation. 7 System settings Room sensors to control the room temperature can be activated here. Here you can set a factor that determines how much the supply temperature is to be affected by the difference between the desired room temperature and the actual room temperature. A higher value gives a greater change of the heating curve's set offset. If several climate systems are installed the above settings can be made for the relevant systems. 10 Setting the fan speed exhaust air Make different system settings for the heat pump here, e.g. which accessories are installed. There are two ways of activating connected accessories. You can either mark the alternative in the list or use the automatic function "search installed acc.". normal and speed 1-4 Setting range: % search installed acc. Mark search installed acc." and press the OK button to automatically find connected accessories for F370. Set the speed for the five different selectable speeds for the fan here. Caution An incorrectly set value may damage the house in the long term and possibly increase energy consumption. 26 Chapter 6 Commissioning and adjusting

29 13 Setting "extra climate system" 22 Checking the measurement values from sensor This part of the start guide is only displayed if the alternative is selected in a previous menu and the accessory is installed. mixing valve amplifier Setting range: Default value: 1.0 mixing valve step delay Setting range: s Default values: 30 s Set the shunt amplification and shunt waiting time for the different extra climate systems that are installed. See the accessory installation instructions for function description. Check here whether the selected externally mounted sensor shows permitted values for the installation. 23 Setting time and date Set time and date and display mode here. Chapter 6 Commissioning and adjusting 27

30 24 Setting min. flow line temp. 25 Setting max. flow line temp. climate system Setting range: C climate system Setting range: C Default values: 20 C Default value: 60 C Set the minimum temperature on the supply temperature to the climate system. This means that F370 never calculates a temperature lower than that set here. If there is more than one climate system the setting can be made separately for each system. TIP The value can be increased if you have, for example, a cellar that you always want to heat, even in summer. You may also need to increase the value in "stop heating" menu "auto mode setting". Set the maximum supply temperature for the climate system here. If the installation has more than one climate system, individual maximum flow temperatures can be set for each system. Caution Underfloor heating systems are normally max flow line temperature set between 35 and 45 C. Check the max floor temperature with your floor supplier. 26 Setting the heat curve At basic setting the climate system "heating curve" and "temperature" (heating curve offset) must be changed. Further information on how to set the heating curve can be found on page 40. Setting automatic heating controls with diagram The diagrams are based on the dimensioned outdoor temperature in the area and the dimensioned supply temperature of the climate system. When these two val- 28 Chapter 6 Commissioning and adjusting

31 ues "meet", the heating control's curve slope can be read. This is set under "heating curve in menu Setting operating mode FRAMLEDNINGSTEMPERATUR + 5 C VÄRMEKURVA C - 5 FÖRSKJUTNING UTETEMPERATUR VÄRMEKURVA (-2) FRAMLEDNINGSTEMPERATUR + 5 C VÄRMEKURVA C - 5 FÖRSKJUTNING UTETEMPERATUR VÄRMEKURVA (0) FRAMLEDNINGSTEMPERATUR + 5 C C - 5 FÖRSKJUTNING UTETEMPERATUR VÄRMEKURVA (+2) VÄRMEKURVA op. mode Setting range: auto, manual, add. heat only Default value: auto functions Setting range: compressor, addition, heating The heat pump operating mode is usually set to "auto". It is also possible to set the heat pump to "add. heat only", but only when an addition is used, or "manual" and select yourself what functions are to be permitted. Change the operating mode by marking the desired mode and pressing the OK button. When an operating mode is selected it shows what in the heat pump is permitted (crossed out = not permitted) and selectable alternatives to the right. To select selectable functions that are permitted or not you mark the function using the control knob and press the OK button. Operating mode auto In this operating mode you cannot select which functions are to be permitted because it is handled automatically by the heat pump. Operating mode manual In this operating mode you can select what functions are permitted. You cannot deselect "compressor" in manual mode. Operating mode add. heat only Caution If you choose mode "add. heat only" the compressor is deselected and there is a higher operating cost. In this operating mode the compressor is not active and only additional heating is used. Chapter 6 Commissioning and adjusting 29

32 Functions "compressor" is that which produces heating and hot water for the accommodation. If "compressor" is deselected, a symbol in the main menu on the heat pump symbol is displayed. You cannot deselect "compressor" in manual mode. "addition" is what helps the compressor to heat the accommodation and/or the hot water when it cannot manage the whole requirement alone. "heating" means that you get heat in the accommodation. You can deselect the function when you do not wish to have heating running. Caution If you deselect "addition" it may mean that insufficient hot water and/or heating in the accommodation is achieved. 28 Dealing with alarms 29 Filling in the checklist Do not forget to fill in the checklist on page 7 and in the user manual. 30 Complete the start guide Here you select whether to start the start guide the next time the heat pump is restarted. Select if you want the heat pump to alert you that there is an alarm in the display here. The method the heat pump uses to alert you to lower the room temperature. Caution If no alarm action is selected, it can result in higher energy consumption in the event of an alarm. Caution If you choose "yes" this means that the next time the heat pump is started (e.g. after a power cut) it will not produce heat or hot water for 60 minutes. 30 Chapter 6 Commissioning and adjusting

33 Setting the ventilation The factory setting for ventilation on the heat pump is high. Ventilation must be set according to applicable norms. The setting is made in menu Even if ventilation is roughly set at installation it is important that a ventilation adjustment is ordered and permitted. NOTE Order a ventilation adjustment to complete the setting. Commissioning without fan The heat pump can be run without recovery, as only an electric boiler, to produce heat and hot water, for example before the ventilation installation is complete. Then enter menu 4.2 op. mode and select add. heat only. Go to menu fan sp. exhaust air and reduce the fan speed to 0%. NOTE Select operating mode auto or manual when the heat pump is to run on recovery again. Tillgängligt tryck (Pa) %/100% 80% % % % 50 40% 30% 0 10% 20% Flöd (l/ ) Setting the pump speed The speed of the circulation pump (GP1) is set using the switch (GP1-SF4) on the pump so that it achieves the projected flow for the house. Set the speed on the heating medium pump (GP1) using the switch (GP1-SF4) on the pump. Select speed I, II or III. You see the speed selected on the left, above the switch. The display to the right, above the switch must not be illuminated at all. Effekt (watt) 140 LEK % 60% 70% 90%/100% 80% Tillgängligt tryck (kpa) % 30% 0 10% 20% Luftflöde (l/s) II III 10 I 0 0 0,05 0,11 0,16 0,22 0,27 0,33 0,38 Chapter 6 Commissioning and adjusting 31

34 Power Effekt output (watt) (W) Output circulation pump I 0 0 0,05 0,11 0,16 0,22 0,27 0,33 0,38 Flow (l/s) II III Post-adjustment, venting Air is initially released from the hot water and venting may be necessary. If gurgling sounds can be heard from the heat pump or climate system, the entire system will require additional venting. Vent the heat pump through venting valve (QM21). When venting, F370 must be off. 32 Chapter 6 Commissioning and adjusting

35 7 Control - Introduction Display unit F Switch (SF1) The switch assumes three positions: On ( ) Standby ( ) Emergency mode ( ) (see page 53) Emergency mode must only be used in the event of a fault on the heat pump. In this mode, the compressor switches off and the immersion heater engages. The heat pump display is not illuminated and the status lamp illuminates yellow. A B C D E Display Instructions, settings and operational information are shown on the display. The easy-to-read display and menu system, facilitates navigation between the different menus and options to set the comfort or obtain the information you require. Status lamp The status lamp indicates the status of the heat pump. It: lights green during normal operation. lights yellow in emergency mode. lights red in the event of a deployed alarm. OK button The OK button is used to: confirm selections of sub menus/options/set values/page in the start guide. Back button The back button is used to: go back to the previous menu. change a setting that has not been confirmed. Control knob The control knob can be turned to the right or left. You can: scroll in menus and between options. increase and decrease the values. change page in multiple page instructions (for example help text and service info). Chapter 7 Control - Introduction 33

36 Menu system When the door to the heat pump is opened, the menu system s four main menus are shown in the display as well as certain basic information. Symbols in the display The following symbols can appear in the display during operation. Symbol Description This symbol appears by the information sign if there is information in menu 3.1 that you should note. These two symbols indicate whether the compressor or addition is blocked in F370. These can, for example, be blocked depending on which operating mode is selected in menu 4.2, if blocking is scheduled in menu or if an alarm has occurred that blocks one of them. Blocking the compressor. Menu 1 - INDOOR CLIMATE Setting and scheduling the indoor climate. See page 37. Menu 2 - HOT WATER Setting and scheduling hot water production. See page 43. Menu 3 - INFO Display of temperature and other operating information and access to the alarm log. See page 45. Menu 4 - HEAT PUMP Setting time, date, language, display, operating mode etc. See page 46. Blocking additional heat. This symbol appears if lux mode for the hot water is activated. This symbol indicates the actual speed of the fan if the speed has changed from the normal setting. This symbol indicates whether "holiday setting" is activated in menu 4.7. Menu 5 - SERVICE Advanced settings. These settings are not available to the end user. The menu is visible by pressing the Back button for 7 seconds. See page Chapter 7 Control - Introduction

37 Operation To move the cursor, turn the control knob to the left or the right. The marked position is brighter and/or has a turned up tab. Selecting options Selecting menu To advance in the menu system select a main menu by marking it and then pressing the OK button. A new window then opens with sub menus. Select one of the sub menus by marking it and then pressing the OK button. In an options menu the current selected option is indicated by a green tick. To select another option: Mark the applicable option. One of the options is pre-selected (white). Press the OK button to confirm the selected option. The selected option has a green tick. Chapter 7 Control - Introduction 35

38 Setting a value Help menu In many menus there is a symbol that indicates that extra help is available. To access the help text: 1. Use the control knob to select the help symbol. 2. Press the OK button. The help text often consists of several windows that you can scroll between using the control knob. To set a value: Mark the value you want to set using the control knob. Press the OK button. The background of the value becomes green, which means that you have accessed the setting mode. Turn the control knob to the right to increase the value and to the left to reduce the value. Press the OK button to confirm the value you have set. To change and return to the original value, press the Back button. Scroll through the windows A menu can consist of several windows. Turn the control knob to scroll between the windows. Scroll through the windows in the start guide 1. Turn the control knob until one of the arrows in the top left corner (at the page number) has been marked. 2. Press the OK button to skip between the steps in the start guide. 36 Chapter 7 Control - Introduction

39 8 Control - Menus Menu 1 - INDOOR CLIMATE Overview 1 - INDOOR CLIMATE temperature ventilation scheduling advanced heating ventilation heating curve external adjustment min. flow line temp room sensor settings fan return time own curve point offset Sub-menus For the menu INDOOR CLIMATE there are several submenus. Status information for the relevant menu can be found on the display to the right of the menus. temperature Setting the temperature for the climate system. The status information shows the set values for the climate system. ventilation Setting the fan speed. The status information shows the selected setting. scheduling Scheduling heating and ventilation. Status information "set" is displayed if you set a schedule but it is not active now, "holiday setting" is displayed if the vacation schedule is active at the same time as the schedule (the vacation function is prioritised), "active" displays if any part of the schedule is active, otherwise it displays "off". advanced Setting of heat curve, adjusting with external contact, minimum value for supply temperature and room sensor. Menu temperature If the house has several climate systems, this is indicated on the display by a thermometer for each system. Set the temperature (with room sensors installed and activated): Setting range: 5-30 C Default value: 20 The value in the display appears as a temperature in C if the heating system is controlled by a room sensor. To change the room temperature, use the control knob to set the desired temperature in the display. Confirm the new setting by pressing the OK button. The new temperature is shown on the right-hand side of the symbol in the display. Setting the temperature (without room sensors activated): Setting range: -10 to +10 Default value: 0 The display shows the set values for heating (curve offset). To increase or reduce the indoor temperature, increase or reduce the value on the display. Use the control knob to set a new value. Confirm the new setting by pressing the OK button. The number of steps the value has to be changed to achieve a degree change of the indoor temperature depends on the heating unit. One step for under floor heating whilst radiators may require three. Setting the desired value. The new value is shown on the right-hand side of the symbol in the display. Chapter 8 Control - Menus 37

40 Caution An increase in the room temperature can be slowed by the thermostats for the radiators or under floor heating. Therefore, open the thermostat valves fully, except in those rooms where a cooler temperature is required, e.g. bedrooms. TIP Wait 24 hours before making a new setting, so that the room temperature has time to stabilise. If it is cold outdoors and the room temperature is too low, increase the curve slope in menu by one increment. If it is cold outdoors and the room temperature is too high, lower the curve slope menu by one increment. If it is warm outdoors and the room temperature is too low, increase the value in menu 1.1 by one increment. If it is warm outdoors and the room temperature is too high, reduce the value in menu 1.1 by one increment. Menu ventilation Setting range: normal and speed 1-4 Default value: normal The ventilation in the accommodation can be temporarily increased or reduced here. When you have selected a new speed a clock starts a count down. When the time has counted down the ventilation speed returns to the normal setting. If necessary, the different return times can be changed in menu The fan speed is shown in brackets (in percent) after each speed alternative. TIP If longer time changes are required use the holiday function or scheduling. Menu scheduling In the menu scheduling indoor climate (heating/ventilation) is scheduled for each weekday. You can also schedule a longer period during a selected period (vacation) in menu 4.7. Menu heating Increases or decreases in the accommodation temperature can be scheduled here for up to three time periods per day. If a room sensor is installed and activated the desired room temperature ( C) is set during the time period. Without an activated room sensor the desired change is set (of setting in menu 1.1). A one degree change in room temperature requires one increment for underfloor heating and approximately two to three increments for the radiator system. If two settings conflict with each other a red exclamation mark is displayed at the end of the line. Schedule: The schedule to be changed is selected here. Activated: Scheduling for the selected period is activated here. Set times are not affected at deactivation. System: Which climate system the schedule is for is selected here. This alternative is only displayed if more than one climate system is present. Day: Select which day or days of the week the schedule is to apply to here. To remove the scheduling for a particular day, the time for that day must be reset by setting the start time to the same as the stop time. If the line "all" is used, all days in the period are set for these times. Time period: The start and stop time for the selected day for scheduling are selected here. Adjusting: How much the heating curve is to be offset in relation to menu 1.1 during scheduling is set here. If the rooms sensor is installed the desired room temperature is set in C. TIP If you wish to set similar scheduling for every day of the week start by filling in all and then changing the desired days. 38 Chapter 8 Control - Menus

41 Caution If the stop time is before the start time it means that the period extends past midnight. Scheduling always starts on the date that the start time is set for. Changes of temperature in accommodation take time. For example, short time periods in combination with underfloor heating will not give a noticeable difference in room temperature. If the exhaust air temperature falls below 16 C, the compressor is blocked and the electrical addition is permitted to intervene. When the compressor is blocked heat is not recovered from the exhaust air. TIP If you wish to set similar scheduling for every day of the week start by filling in all and then changing the desired days. Caution If the stop time is before the start time it means that the period extends past midnight. Scheduling always starts on the date that the start time is set for. A significant change over a longer period of time may cause poor indoor environment and worse operating economy. Menu ventilation Increases or decreases in the ventilation to the accommodation can be scheduled here for up to two time periods per day. If two settings conflict with each other a red exclamation mark is displayed at the end of the line. Menu advanced Menu advanced has orange text and is intended for the advanced user. This menu has several sub-menus. heating curve Setting the heating curve slope. external adjustment Setting the heat curve offset when the external contact is connected. min. flow line temp. Setting minimum permitted flow line temperature. room sensor settings Settings regarding the room sensor. fan return time Fan return time settings in the event of temporary ventilation speed change. own curve Setting own heat curve. point offset Setting the offset of the heating curve at a specific outdoor temperature. Menu heating curve Schedule: The schedule to be changed is selected here. Activated: Scheduling for the selected period is activated here. Set times are not affected at deactivation. Day: Select which day or days of the week the schedule is to apply to here. To remove the scheduling for a particular day, the time for that day must be reset by setting the start time to the same as the stop time. If the line "all" is used, all days in the period are set for these times. Time period: The start and stop time for the selected day for scheduling are selected here. Adjusting: The desired fan speed is set here. heating curve Setting range: 0-15 Default value: 9 In the menu heating curve the so-called heating curve for your house can be viewed. The task of the heating curve is to give an even indoor temperature, regardless of the outdoor temperature, and thereby energy efficient Chapter 8 Control - Menus 39

42 operation. It is from this heating curve that the heat pump s control computer determines the temperature of the water to the heating system, flow line temperature, and therefore the indoor temperature. You can select heating curve and read off how the flow line temperature changes at different outdoor temperatures here. Curve coefficient C Brantare kurvlutning C UTETEMPERATUR The slope of the heating curve indicates how many degrees the supply temperature is to be increased/reduced when the outdoor temperature drops/increases. A steeper slope means a higher supply temperature at a certain outdoor temperature. The optimum slope depends on the climate conditions in your location, if the house has radiators or under floor heating and how well insulated the house is. The heating curve is set when the heating installation is installed, but may need adjusting later. Thereafter the heating curve should not need further adjustment. Caution In the event of making fine adjustments for the indoor temperature, the heat curve must be offset up or down instead, this is done in menu 1.1 temperature. Curve offset C 70 Förskjuten värmekurva 60 An offset of the heating curve means that the supply temperature changes as much for all the outdoor temperatures, e.g. that a curve offset of +2 steps increases the supply temperature by 5 C at all outdoor temperatures. Flow line temperature maximum and minimum values C Maximivärde Minimivärde C UTETEMPERATUR Because the flow line temperature cannot be calculated higher than the set maximum value or lower than the set minimum value the heating curve flattens out at these temperatures. Caution Underfloor heating systems are normally max flow line temperature set between 35 and 45 C. Check the max temperature for your floor with your installer/floor supplier. The figure at the end of the curve indicates the curve slope. The figure beside the thermometer gives the curve offset. Use the control knob to set a new value. Confirm the new setting by pressing the OK button. Curve 0 is an own heating curve created in menu To select another heat curve (slope): NOTE If you only have one heating system, the number of the curve is already marked when the menu window opens C UTETEMPERATUR 1. Select the system (if more than one) for which the heat curve is to be changed. 2. When the system selection has been confirmed the heat curve number is marked. 3. Press the OK button to access the setting mode 4. Select a new heating curve. The heat curves are numbered from 0 to 15, the greater the number, the steeper the slope and the greater the supply temper- 40 Chapter 8 Control - Menus

43 ature. Heating curve 0 means that own curve (menu 1.9.7) is used. 5. Press the OK button to exit the setting. To read off a heating curve: 1. Turn the control knob so that the ring on the shaft with the outdoor temperature is marked. 2. Press the OK button. 3. Follow the grey line up to the heat curve and out to the left to read off the value for the supply temperature at the selected outdoor temperature. 4. You can now select to take read outs for different outdoor temperatures by turning the control knob to the right or left and read off the corresponding flow temperature. 5. Press the OK or Back button to exit read off mode. TIP Wait 24 hours before making a new setting, so that the room temperature has time to stabilise. If it is cold outdoors and the room temperature is too low, increase the curve slope by one increment. If it is cold outdoors and the room temperature is too high, lower the curve slope by one increment. If it is warm outdoors and the room temperature is too low, increase the curve offset by one increment. If it is warm outdoors and the room temperature is too high, lower the curve offset by one increment. Menu external adjustment climate system Setting range: -10 to +10 or desired room temperature if the room sensor is installed. Default value: 0 Connecting an external contact, for example, a room thermostat or a timer allows you to temporarily or periodically raise or lower the room temperature. When the contact is on, the heat curve offset is changed by the number of steps selected in the menu. If a room sensor is installed and activated the desired room temperature ( C) is set. If there is more than one climate system the setting can be made separately for each system. Menu min. flow line temp. climate system Setting range: C Default values: 20 C Set the minimum temperature on the supply temperature to the climate system. This means that F370 never calculates a temperature lower than that set here. If there is more than one climate system the setting can be made separately for each system. TIP The value can be increased if you have, for example, a cellar that you always want to heat, even in summer. You may also need to increase the value in "stop heating" menu "auto mode setting". Menu room sensor settings factor system Setting range: Default value: 2.0 Room sensors to control the room temperature can be activated here. Here you can set a factor that determines how much the supply temperature is to be affected by the difference between the desired room temperature and the actual room temperature. A higher value gives a greater change of the heating curve's set offset. If several climate systems are installed the above settings can be made for the relevant systems. Menu fan return time speed 1-4 Setting range: 1 99 h Default value: 4 h Here you select the return time for temporary speed change (speed 1-4) on the ventilation in menu 1.2. Return time is the time it takes before ventilation speed returns to normal. Menu own curve supply temperature Setting range: C Chapter 8 Control - Menus 41

44 You can create your own heating curve here, if there are special requirements, by setting the desired supply temperatures for different outdoor temperatures. Caution Curve 0 in menu must be selected for this curve to apply. Menu point offset outdoor temp. point Setting range: C Default value: 0 C change in curve Setting range: C Default value: 0 C Select a change in the heating curve at a certain outdoor temperature here. A one degree change in room temperature requires one increment for underfloor heating and approximately two to three increments for the radiator system. The heat curve is affected at ± 5 C from set outdoor temp. point. It is important that the correct heating curve is selected so that the room temperature is experienced as even. TIP If it is cold in the house, at, for example -2 C, "outdoor temp. point" is set to "-2" and "change in curve" is increased until the desired room temperature is maintained. Caution Wait 24 hours before making a new setting, so that the room temperature has time to stabilise. 42 Chapter 8 Control - Menus

45 Menu 2 - HOT WATER Overview 2 - HOT WATER temporary lux comfort mode scheduling advanced periodic increases hot water recirc. * * Accessory needed. Sub-menus For the menu HOT WATER there are several sub-menus. Status information for the relevant menu can be found on the display to the right of the menus. temporary lux Activation of temporary increase in the hot water temperature. Status information displays off" or what length of time of the temporary temperature increase remains. comfort mode Setting hot water comfort. The status information displays what mode is selected, "economy", "normal" or "luxury". scheduling Scheduling hot water comfort. Status information "set" displays if any part of the schedule is active at present, "holiday setting" displays if vacation setting is in progress (menu 4.7), otherwise it displays "off". advanced Setting periodic increase in the hot water temperature. Menu temporary lux Setting range: 3, 6 and 12 hours and mode "off" Default value: "off" When hot water requirement has temporarily increased this menu can be used to select an increase in the hot water temperature to lux mode for a selectable time. Caution If comfort mode "luxury" is selected in menu 2.2 no further increase can be carried out. The function is activated immediately when a time period is selected and confirmed using the OK button. The time to the right displays the remaining time at the selected setting. When the time has run out F370 returns to the mode set in menu 2.2. Select off" to switch off temporary lux. Menu comfort mode Setting range: economy, normal, luxury Default value: normal The difference between the selectable modes is the temperature of the hot tap water. Higher temperature means that the hot water lasts longer. economy: This mode gives less hot water than the other, but is more economical. This mode can be used in smaller households with a small hot water requirement. normal: Normal mode gives a larger amount of hot water and is suitable for most households. luxury: Lux mode gives the greatest possible amount of hot water. In this mode, the immersion heater, as well as the compressor, is used to heat hot water, which may increase operating costs. Chapter 8 Control - Menus 43

46 NOTE In lux mode the heat pump prioritises hot water before room heating. Menu scheduling What hot water comfort the heat pump is to work with can be scheduled here for up to two different time periods per day. Scheduling is activated/deactivated by ticking/unticking"activated". Set times are not affected at deactivation. If two settings conflict with each other a red exclamation mark is displayed. Schedule: The schedule to be changed is selected here. Activated: Scheduling for the selected period is activated here. Set times are not affected at deactivation. Day: Select which day or days of the week the schedule is to apply to here. To remove the scheduling for a particular day, the time for that day must be reset by setting the start time to the same as the stop time. If the line "all" is used, all days in the period are set for these times. Time period: The start and stop time for the selected day for scheduling are selected here. Adjusting: Set the hot water comfort that is to apply during scheduling here. TIP If you wish to set similar scheduling for every day of the week start by filling in all and then changing the desired days. Caution If the stop time is before the start time it means that the period extends past midnight. Scheduling always starts on the date that the start time is set for. Menu advanced Menu advanced has orange text and is intended for the advanced user. This menu has several sub-menus. Menu periodic increases period Setting range: 1-90 days Default value: 14 days start time Setting range: 00:00-23:00 Default value: 00:00 To prevent bacterial growth in the water heater, the compressor and the immersion heater can increase hot water temperature at regular intervals. The length of time between increases can be selected here. The time can be set between 1 and 90 days. Factory setting is 14 days. Untick "activated" to switch off the function. Menu hot water recirc. operating time Setting range: 1-60 min Default value: 3 min downtime Setting range: 0-60 min Default value: 12 min Set the hot water circulation for up to three periods per day here. During the set periods the hot water circulation pump will run according to the settings above. "operating time" decide how long the hot water circulation pump must run per operating instance. "downtime" decide how long the hot water circulation pump must be stationary between operating instances. 44 Chapter 8 Control - Menus

47 Menu 3 - INFO Overview 3 - INFO service info compressor info add. heat info alarm log indoor temp. log Sub-menus For the menu INFO there are several sub-menus. No settings can be made in these menus, it is just display of information. Status information for the relevant menu can be found on the display to the right of the menus. service info shows temperature levels and settings in the heat pump. compressor info shows operating times, number of starts etc for the compressor. add. heat info displays information about the addition s operating times etc. alarm log displays the latest alarm and information about the heat pump when the alarm occurred. indoor temp. log the average temperature indoors week by week during the past year. Menu service info Information about the heat pump s actual operating status (e.g. current temperatures etc.) can be obtained here. No changes can be made. The information is on several pages. Turn the control knob to scroll between the pages. Symbols in this menu: Compressor Addition Heating Hot water The information is on several pages. Turn the control knob to scroll between the pages. Menu alarm log To facilitate fault-finding the heat pump operating status at alarm alerts is stored here. You can see information for the 10 most recent alarms. To view the run status in the event of an alarm, mark the alarm and press the OK button. Menu indoor temp. log Here you can see the average temperature indoors week by week during the past year. The dotted line indicates the annual average temperature. The average outdoor temperature is only shown if a room temperature sensor/room unit is installed. Otherwise, the exhaust air temperature is shown. To read off an average temperature 1. Turn the control knob so that the ring on the shaft with the week number is marked. 2. Press the OK button. 3. Follow the grey line up to the graph and out to the left to read off the average indoor temperature at the selected week. 4. You can now select to take read outs for different weeks by turning the control knob to the right or left and read off the average temperature. 5. Press the OK or Back button to exit read off mode. Ventilation Menu compressor info Information about the compressor s operating status and statistics can be obtained here. No changes can be made. The information is on several pages. Turn the control knob to scroll between the pages. Menu add. heat info Information about the additional heat settings, operating status and statistics can be obtained here. No changes can be made. Chapter 8 Control - Menus 45

48 Menu 4 - HEAT PUMP Overview 4 - HEAT PUMP op. mode my icons time & date language holiday setting advanced auto mode setting factory setting user schedule blocking Sub-menus For the menu HEAT PUMP there are several sub-menus. Status information for the relevant menu can be found on the display to the right of the menus. op. mode Activation of manual or automatic operating mode. The status information shows the selected operating mode. my icons Settings regarding which icons in the heat pump's user interface that are to appear in the slot when the door is closed. time & date Setting current time and date. language Select the language for the display here. The status information shows the selected language. holiday setting Vacation scheduling heating and ventilation. Status information "set" is displayed if you set a Vacation schedule but it is not active now, "active" displays if any part of the Vacation schedule is active, otherwise it displays "off". advanced Setting heat pump work mode. Menu op. mode op. mode Setting range: auto, manual, add. heat only Default value: auto functions Setting range: compressor, addition, heating The heat pump operating mode is usually set to "auto". It is also possible to set the heat pump to "add. heat only", but only when an addition is used, or "manual" and select yourself what functions are to be permitted. Change the operating mode by marking the desired mode and pressing the OK button. When an operating mode is selected it shows what in the heat pump is permitted (crossed out = not permitted) and selectable alternatives to the right. To select selectable functions that are permitted or not you mark the function using the control knob and press the OK button. Operating mode auto In this operating mode you cannot select which functions are to be permitted because it is handled automatically by the heat pump. Operating mode manual In this operating mode you can select what functions are permitted. You cannot deselect "compressor" in manual mode. Operating mode add. heat only Caution If you choose mode "add. heat only" the compressor is deselected and there is a higher operating cost. In this operating mode the compressor is not active and only additional heating is used. Functions "compressor" is that which produces heating and hot water for the accommodation. If "compressor" is deselected, a symbol in the main menu on the heat pump symbol is displayed. You cannot deselect "compressor" in manual mode. "addition" is what helps the compressor to heat the accommodation and/or the hot water when it cannot manage the whole requirement alone. "heating" means that you get heat in the accommodation. You can deselect the function when you do not wish to have heating running. Caution If you deselect "addition" it may mean that insufficient hot water and/or heating in the accommodation is achieved. 46 Chapter 8 Control - Menus

49 Menu my icons You can select what icon should be visible when the door to F370 is closed. You can select up to 3 icons. If you select more, the ones you selected first will disappear. The icons are displayed in the order you selected them. Menu time & date Set time and date and display mode here. Menu language Choose the language that you want the information to be displayed in here. Menu holiday setting To reduce energy consumption during a holiday you can schedule a reduction in heating, ventilation and hot water temperature. If a room sensor is installed and activated the desired room temperature ( C) is set during the time period. This setting applies to all climate systems with room sensors. If a room sensor is not activated, the desired offset of the heat curve is set. This setting applies to all climate systems without room sensors. A one degree change in room temperature requires one increment for under floor heating and approximately two to three increments for the radiator system. Vacation scheduling starts at 00:00 on the start date and stops at 23:59 on the stop date. TIP Complete holiday setting about a day before your return so that room temperature and hot water have time to regain usual levels. Caution If the exhaust air temperature falls below 16 C, the compressor is blocked and the electrical addition is permitted to intervene. When the compressor is blocked heat is not recovered from the exhaust air. Menu advanced Menu advanced has orange text and is intended for the advanced user. This menu has several sub-menus. Menu auto mode setting stop heating Setting range: C Default values: 20 stop additional heat Setting range: C Default values: 15 filtering time Setting range: 0 48 h Default value: 24 h When operating mode is set to "auto the heat pump selects when start and stop of additional heat and heat production is permitted, dependent on the average outdoor temperature. Select the average outdoor temperatures in this menu. You can also set the time over which (filtering time) the average temperature is calculated. If you select 0, the present outdoor temperature is used. TIP Set the vacation setting in advance and activate just before departure in order to maintain the comfort. Caution If you choose to switch off hot water production during the vacation periodic increases" (preventing bacterial growth) are blocked during this time. "periodic increases" started in conjunction with the vacation setting being completed. Caution It cannot be set "stop additional heat" higher than "stop heating". Menu factory setting user All settings that are available to the user (including advanced menus) can be reset to default values here. Caution After factory setting, personal settings such as heating curves, ventilation etc must be reset. Chapter 8 Control - Menus 47

50 Menu schedule blocking The compressor can be scheduled to be blocked for up to two different time periods here. If two settings conflict with each other a red exclamation mark is displayed at the end of the line. When scheduling is active the actual blocking symbol in the main menu on the heat pump symbol is displayed. Caution Long term blocking can cause reduced comfort and operating economy. Schedule: The period to be changed is selected here. Activated: Scheduling for the selected period is activated here. Set times are not affected at deactivation. Day: Select which day or days of the week the schedule is to apply to here. To remove the scheduling for a particular day, the time for that day must be reset by setting the start time to the same as the stop time. If the line "all" is used, all days in the period are set for these times. Time period: The start and stop time for the selected day for scheduling are selected here. Blocking: The desired blocking is selected here. Blocking the compressor. Blocking additional heat. TIP If you wish to set similar scheduling for every day of the week start by filling in all and then changing the desired days. Caution If the stop time is before the start time it means that the period extends past midnight. Scheduling always starts on the date that the start time is set for. 48 Chapter 8 Control - Menus

51 Menu 5 - SERVICE Overview 5 - SERVICE operating settings system settings accessory settings soft in/outputs factory setting service forced control start guide quick start floor drying function change log hot water settings max flow line temperature max diff flow line temp alarm actions fan sp. exhaust air internal electrical addition other settings extra climate system * sms * * Accessory needed. Hold the Back button in for 7 seconds to access the Service menu. Sub-menus Menu SERVICE has orange text and is intended for the advanced user. This menu has several sub-menus. Status information for the relevant menu can be found on the display to the right of the menus. operating settings Operating settings for the heat pump. system settings System settings for the heat pump, activating accessories etc. accessory settings Operational settings for different accessories. soft in/outputs Setting software controlled in and outputs on the input circuit board (AA3). factory setting service Total reset of all settings (including settings available to the user ) to default values. forced control Forced control of the different components in the heat pump. start guide Manual start of the start guide which is run the first time the heat pump is started. quick start Quick starting the compressor. NOTE Incorrect settings in the service menus can damage the heat pump. Menu operating settings Operating settings can be made for the heat pump in the sub menus. Chapter 8 Control - Menus 49

52 Menu hot water settings economy Setting range start temp. economy: C Factory setting start temp. economy: 45 C Setting range stop temp. economy: C Factory setting stop temp. economy: 51 C normal Setting range start temp. normal: C Factory setting start temp. normal: 49 C Setting range stop temp. normal: C Factory setting stop temp. normal: 55 C luxury Setting range start temp. lux: C Factory setting start temp. lux: 52 C Setting range stop temp. lux: C Factory setting stop temp. lux: 58 C stop temp. per. increase Setting range: C Default values: 60 C Here you set the start and stop temperature of the hot water for the different comfort options in menu 2.2 as well as the stop temperature for periodic increase in menu Menu max flow line temperature climate system Setting range: C Default value: 60 C Set the maximum supply temperature for the climate system here. If the installation has more than one climate system, individual maximum flow temperatures can be set for each system. Caution Underfloor heating systems are normally max flow line temperature set between 35 and 45 C. Check the max floor temperature with your floor supplier. Menu alarm actions Select if you want the heat pump to alert you that there is an alarm in the display here. The method the heat pump uses to alert you to lower the room temperature. Caution If no alarm action is selected, it can result in higher energy consumption in the event of an alarm. Menu fan sp. exhaust air normal and speed 1-4 Setting range: % Set the speed for the five different selectable speeds for the fan here. Caution An incorrectly set value may damage the house in the long term and possibly increase energy consumption. Menu internal electrical addition set max electrical add. Setting range: 0-8 kw Default values: 5.3 kw fuse size Setting range: A Default values: 16 A Here you set the max. electrical output of the internal electrical addition in F370 and the fuse size for the installation. Menu other settings trend calculation limit Setting range: 0 20 C Default value: 7 C transfer time Setting range: 1-60 min Default value: 15 min months btwn filter alarms Setting range: 1 12 Default value: 3 Here you can set trend calculation limit, transfer time, months btwn filter alarms and min. defrost time. 50 Chapter 8 Control - Menus

53 trend calculation limit Here you set at what outdoor temperature the trend calculation is to stop. Below this limit trend calculating is not used to enable the additional heat. transfer time Here you can set transfer time between heating and hot water production in F370. months btwn filter alarms Here you set the number of months between alarms for a reminder to clean the filter in F370. Menu system settings Make different system settings for the heat pump here, e.g. which accessories are installed. There are two ways of activating connected accessories. You can either mark the alternative in the list or use the automatic function "search installed acc.". search installed acc. Mark search installed acc." and press the OK button to automatically find connected accessories for F370. Menu accessory settings The operating settings for accessories that are installed and activated are made in the sub-menus for this. Menu extra climate system mixing valve amplifier Setting range: Default value: 1.0 Menu factory setting service All settings can be reset (including settings available to the user) to default values here. NOTE When resetting, the start guide is displayed the next time the heat pump is restarted. Menu forced control You can force control the different components in the heat pump here. Menu start guide When the heat pump is started for the first time the start guide starts automatically. Start it manually here. For more information about the different parts of the start guide, see page 25. Menu quick start It is possible to start the compressor from here. Caution There must be a heating or hot water demand to start the compressor. Caution Do not quick start the compressor too many times in succession over a short period of time as this may damage the compressor and its ancillary equipment. mixing valve step delay Setting range: s Default values: 30 s Set the shunt amplification and shunt waiting time for the different extra climate systems that are installed. See the accessory installation instructions for function description. Menu soft in/outputs Here you can select which in/output on the input circuit board (AA3) the external contact function (page 22) is to be connected to. Selectable inputs on terminal block AUX1-5 (AA3-X6:9-18) and output AA3-X7 (on the input circuit board). Chapter 8 Control - Menus 51

54 Menu floor drying function length of period 1-3,5-7 Setting range: 0-30 days Default value: 2 days temp. period 1-3, 5-7 Setting range: C Default value: temp. period 1 temp. period 2 temp. period 3 temp. period 5 temp. period 6 temp. period 7 20 C 30 C 40 C 40 C 30 C 20 C length of period 4 Setting range: 0-30 days Default value: 3 days temp. period 4 Setting range: C Default value: 45 C Set the function for under floor drying here. You can set up to seven period times with different calculated flow temperatures. If less than seven periods are to be used, set the remaining period times to 0 days. Mark the active window to activate the under floor drying function. A counter at the bottom shows the number of days the function has been active. TIP If operating mode "add. heat only" is to be used, select it in menu 4.2. Menu change log Read off any previous changes to the control system here. The date, time and ID no. (unique to certain settings) and the new set value is shown for every change. NOTE The change log is saved at restart and remains unchanged after factory setting. 52 Chapter 8 Control - Menus

55 LEK 9 Service Service actions NOTE Servicing should only be carried out by persons with the necessary expertise. When replacing components on F370 only replacement parts from NIBE may be used. NOTE If an electrical connection has been disconnected and is connected, ground must be checked using a suitable multimeter. NOTE An immersion heater without a temperature limiter is not allowed to be installed. NOTE After servicing, complete the relevant Service Interval Record section of the Benchmark Checklist located at the back of this document. Completion of the Service Interval Record is a condition of warranty. For full terms and conditions of warranty, please see our website Maintenance 2. Heating curve settings. 3. Function of the room sensor (if installed). 4. Limiting valve settings. 5. System pressure. 6. Flow and return temperature. The difference must be Correct any fault before continuing. Emergency mode Emergency mode is used in event of operational interference and in conjunction with service. Emergency mode is activated by setting switch (SF1) to. This means that: The status lamp illuminates yellow. The display is not lit and the control computer is not connected. The temperature in the heat pump boiler section is controlled by a fixed thermostat (BT30) at 63 C. The compressor is off and only the fan, heating medium pump and the electrical addition are active. The electrical addition power in emergency mode is set in the immersion heater card (AA1). See page 21 for instructions. The automatic heating control system is not operational, so manual shunt operation is required. This is done by turning the adjustment screw on the shunt motor (MA1) to "manual mode" and then turning the shunt knob to the desired position. General inspection Check the following: 1. Condition of casing. 2. Electrical connections. 3. Pipe connections. 4. Alarm log. Correct any fault before continuing. LEK Hot water heater Check the following: 1. Hot water start and stop temperature. 2. Pressure controlled bypass valve. 3. T&P valve. 4. Overflow pipe. 5. Pressure expansion vessel. Correct any fault before continuing. Climate system Check the following: 1. Climate system start and stop temperature. Draining the water heater The water heater can be drained via the safety valve (FL1) or via the overflow cup (WM1). 1. Disconnect the overflow pipe from the safety valve (FL1) and connect a hose to a draining pump instead. Where no draining pump is available, the water can be released into the overflow cup (WM1). 2. Open the safety valve (FL1). 3. Open a hot water tap to let air into the system. If this is not sufficient, detach the pipe connection (XL4) on the hot water side to see if air is entering. Chapter 9 Service 53

56 LEK Draining the climate system USB service outlet In order to carry out service on the climate system, it may be easier to drain the system first. NOTE There may be some hot water when draining the heating medium side/climate system. There is a risk of scalding. The hot water can be tapped through safety valve (FL2) via the overflow cup (WM1) or through a hose that is connected to the safety valve's (FL2) outlet. 1. Open the safety valve (FL2). 2. Set the vent valve for the climate system (QM20) in the open position for air supply. Temperature sensor data Temperature ( C) Resistance (kohm) Voltage (VDC) F370 is equipped with a USB socket in the display unit. This USB socket can be used to connect a USB memory to update the software, save logged information and handle the settings in F370. INDOOR CLIMATE HOT WATER HEAT PUMP USB INFO When a USB memory is connected a new menu (menu 7) appears in the display. 54 Chapter 9 Service

57 Menu update firmware choose another file This allows you to update the software in F370. NOTE For the following functions to work the USB memory must contain files with software for F370 from NIBE. Select choose another file" if you do not want to use the suggested software. When you scroll through the files, information about the marked software is shown in a fact box just as before. When you have selected a file with the OK button you will return to the previous page (menu 7.1) where you can choose to start the update. The fact box at the top of the display shows information (always in English) of the most probable update that the update software has selected form the USB memory. Menu logging This information states which product the software is intended for, the software version and general information about them. If you wish to select another file than the one selected, the correct file can be selected by "choose another file". start updating Select start updating" if you want to start the update. You are asked whether you really want to update the software. Respond "yes" to continue or "no" to undo. If you responded"yes" to the previous question the update starts and you can now follow the progress of the update on the display. When the update is complete F370 restarts. NOTE A software update does not reset the menu settings in F370. NOTE If the update is interrupted before it is complete (for example power cut etc.) the software can be reset to the previous version if the OK button is held in during start up until the green lamp starts to illuminate (takes about 10 seconds). Setting range: 1 s 60 min Default setting range: 5 s Set whether the present measurement values from F370 are to be saved in a log on the USB memory. Log for longer periods 1. Set the desired interval between loggings. 2. Tick activated". 3. Mark read log settings" and press the OK button. 4. The present values from F370 are saved in a file in the USB memory at the set interval until activated" is unticked. Caution Untick "activated" before removing the USB memory. Chapter 9 Service 55

58 Menu manage settings Here you can manage (save as or retrieve from) all the menu settings (user and service menus) in F370 with a USB memory. Via "save settings" you save the menu settings to the USB memory in order to restore them later or to copy the settings to another F370. NOTE When you save the menu settings to the USB memory you replace any previously saved settings on the USB memory. Via "recover settings" you reset all menu settings from the USB memory. NOTE Reset of the menu settings from the USB memory cannot be undone. 56 Chapter 9 Service